Pinpoint Test G: The Odometer Is Inoperative

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test G: The Odometer Is Inoperative

Normal Operation

The Instrument Cluster (IC) receives the odometer rolling count data from the PCM over the High Speed Controller Area Network (HS-CAN) communication bus. The IC monitors the odometer rolling count input from the PCM and commands the odometer with a display in the message center display area.

If the IC does not receive the odometer rolling count data or if the rolling count data is deemed invalid from the PCM for less than 5 seconds, the IC displays the mileage based upon the last known good input.

If the IC does not receive the odometer rolling count data, the IC defaults the odometer display to all dashes (-----).

If the rolling count data is deemed invalid from the PCM for 5 seconds, the IC sets DTC U2023 in continuous memory and defaults the odometer display to all dashes (-----).

If the Non-Volatile Memory (NVM) is corrupted, the message center displays ERROR.

This pinpoint test is intended to diagnose the following:

- PCM concern
- IC


PINPOINT TEST G: THE ODOMETER IS INOPERATIVE

-------------------------------------------------
G1 CHECK FOR CORRUPTED NVM


- Ignition ON.
- Observe the message center display area.
- Does the odometer display ERROR?

Yes
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

No
GO to G2.

-------------------------------------------------
G2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST


- Check the recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.
- Are any DTCs recorded?

Yes
DIAGNOSE all PCM DTCs first. REFER to Computers and Control Systems.

No
GO to G3.

-------------------------------------------------
G3 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST


- Check for recorded IC DTCs from the self-test.
- Are any DTCs recorded?

Yes
For DTC U0100, GO to Pinpoint Test AO. Pinpoint Test AO: DTC U0100

For DTC U2023, RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. REFER to Computers and Control Systems and Multifunction Electronic Modules Testing and Inspection for a list of all DTCs.

For all other DTCs, REFER to DTC Charts. Instrumentation, Message Center, and Warning Chimes

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

-------------------------------------------------